What are the differences between depression and grief/sadness?
Loss can understandably lead to feelings of sadness, but with grief these feelings are specific to the person or situation that has been lost, while depression tends to be persistent across all areas of life. Depression can evolve from unresolved or prolonged grief. Sadness is a normal emotion that all humans experience throughout life; it can be a symptom of depression but oftentimes it is a relatively short period of feeling down. Depression lasts at least two weeks and is accompanied by other symptoms like the ones described above.